一、氧气的性质:(1)单质与氧气的反应:(化合反应)1.镁在空气中燃烧:2Mg+O2点燃2MgO2.铁在氧气中燃烧:3Fe+2O2点燃Fe3O43.铜在空气中受热:2Cu+O22CuO4.铝在空气中燃烧:4Al+3O2点燃2Al2O35.氢气中空气中燃烧:2H2+O2点燃2H2O6.红磷在空气中燃烧(研究空气组成的实验):4P+5O2点燃2P2O57.硫粉在空气中燃烧:S+O2点燃SO28.碳在氧气中充分燃烧:C+O2点燃CO29.碳在氧气中不充分燃烧:2C+O2点燃2CO(2)化合物与氧气的反应:1...
A.look短语1.lookat看......2.lookfor寻找3.lookup查阅,向上看4.lookout向外看,小心5.lookover仔细检查6.lookafter照顾,照料7.looklike看起来像8.lookthrough浏览9.lookinto向—里看10.lookaround环顾四周11.lookforwardto期盼,期待12.lookahead向前看B.put短语1.putup举起,挂起,搭建2.puton穿上,戴上,上演3.putaway把—放好4.putoff推迟,推延5.putdown把—放下,记下6.putout扑灭,伸出7.putinto把...放进...,把......
Part1基础巩固单项选择。()1.wasMarywhopickedupthewallet.(江西宜春中考模拟)A.HeB.SheC.TheyD.It()2.ItwasattheparkIfirstmetCoco.(四川成都中考模拟)A.whichB.whereC.thatD.what()3.Whenwasityoumetyourfriend?(黑龙江绥化期中)A.thetimeB.whichC.whereD.that()4.ItisIagainsttheplan,becauseitsoundsimpossibletocarryout.(江苏南京月考)A.thatisB.whoamC.whoareD.thatare()5.ItwasbecauseIlikeyouIspeakoutfrankly.(云南昭...
1.(2020山东滨州)8.—IthinkIamtheshyestinmyclass.WhatshouldIdo?—Bemoreactiveinclass,________youcanimproveyourabilitytoexpressyourself.A.sothatB.unlessC.orD.although2.(2020四川甘孜州)10.Iwaited_______theyfinishedtalking.A.untilB.ifC.because3.(2020四川广元)10.________youkeepmoving,youllneverreachthetopofthemountain.A.IfB.AlthoughC.Unless4.(2020四川凉山)15.—Letsgocampingifit_______n...
单项选择。()1.threeorangenotebooks.(重庆期中)A.HereareB.HereisC.ThisisD.Thatis()2.Ifyoutakeavacationthissummer,soI.(黑龙江绥化中考)A.willB.doC.amD.did()3.Onlyyesterdayfindoutthathispursewaslost.(甘肃兰州中考)A.hewasB.washeC.didheD.hedid()4.Onlyatthattimethathewaswrong.(黑龙江绥化中考)A.herealizedB.didherealizeC.hedidrealizeD.hedidrealized()5.-ZhangFuqing,onceasoldier,oftenthinksmoreaboutotherst...
Part1基础巩固800atmyschool.(甘肃甘南州中单项选择。()1.Thenumberofstudents考)A.amB.isC.areD.be()2.Thepairoftrousersme.Illtakeit.(黑龙江齐齐哈尔中考)A.fitB.ftsC.willfitD.isfitted()3.NeitherLiHuanorIgoodatwriting.(湖南永州中考)A.amB.isC.areD.were()4.Eitherthestudentsortheteacherhimverywell.(甘肃天水中考)A.knowsB.toknowC.knowD.knew()5.BothMikeandIreadyforthenewhighschoollife.(新疆生产建设兵团中考)A...
Part1基础巩固单项选择。()1.wasMarywhopickedupthewallet.(江西宜春中考模拟)A.HeB.SheC.TheyD.It()2.ItwasattheparkIfirstmetCoco.(四川成都中考模拟)A.whichB.whereC.thatD.what()3.Whenwasityoumetyourfriend?(黑龙江绥化期中)A.thetimeB.whichC.whereD.that()4.ItisIagainsttheplan,becauseitsoundsimpossibletocarryout.(江苏南京月考)A.thatisB.whoamC.whoareD.thatare()5.ItwasbecauseIlikeyouIspeakoutfrankly.(云南昭...
Part1基础巩固单项选择。()1.IvisitedthezoolastSunday.(四川内江中考)A.主语B.谓语C.状语D.宾语()2.Igotothemoviesonceaweek.(四川内江中考)A.宾语B.状语C.表语D.定语()3.Thefoodintherestaurantisdelicious.(四内江中考)A.表语B.宾语C.主语D.谓语()4.Itwasraininghardwhenwearrived.(四川内江中考)A.谓语B.表语C.主语D.宾语()5.Therearesomevolunteersinthepark.(四川内江中考)A.表语B.宾语C.主语D.定语()6.Sixteen-year-olds...
Part1基础巩固.(广东茂名中考)单项选择。()1.-Arethoseyourbooks?-Yes,A.itisB.theseareC.theyareD.thatis()2.-Isthegirlinredyourfriend?-.SheislearningChinesenow.(贵州铜仁中考)A.Yes,itis.B.Yes,heis.C.Yes,sheis.D.Yes,shedoes.()3.-yourbrotherusuallybasketballatschool?-No,hedoesnt.Heusuallyplaysitintheclubs.(广西钦州中考)A.Do;playB.Does;playsC.Do;playsD.Does;play()4.-DoyoulikewatchingTV?-Yes,I.Butonlyaft...
Part1基础巩固inthearmy,notaninthegovernment.单项选择。()1.Mr.BlackisanYoucannoteasilyfindhiminhis(广东中考)A.official;officer;officeB.officer;office;officialC.official;official;officialD.officer;official;office()2.Thechildlookedatme.(江西中考模拟)A.strangerB.strangelyC.strangeD.strangeness()3.Canadaismainlyancountry.(上海中考模拟)A.English-speakingB.speak-EnglishC.spoken-EnglishD.English-spoken...
Part1基础巩固单项选择。()1.IlikefruitIdontlikevegetables.(黑龙江齐齐哈尔期末)A.andB.butC.orD.if()2.Shewastired,shecontinuedherwork.(天津中考英语)A.soB.untilC.butD.that()3.Workhardandbepatient,____yourdreamwontcometrue.(吉林长春中考)A.orB.andC.butD.so()4.Theschoolisfarfromherhome,shehastoliveatschool.(山东聊城中考)A.soB.butC.orD.and()5.Theresalotoflitterinthepark,theyregoingtocollectit(广西柳州...